EP3607569A1 - Electrically insulated electric conductor strip, in particular for electric motors and transformers - Google Patents
Electrically insulated electric conductor strip, in particular for electric motors and transformersInfo
- Publication number
- EP3607569A1 EP3607569A1 EP18715509.8A EP18715509A EP3607569A1 EP 3607569 A1 EP3607569 A1 EP 3607569A1 EP 18715509 A EP18715509 A EP 18715509A EP 3607569 A1 EP3607569 A1 EP 3607569A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- band
- conduction band
- adhesive tape
- side edge
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 21
- 239000002390 adhesive tape Substances 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000004922 lacquer Substances 0.000 claims description 22
- 238000010292 electrical insulation Methods 0.000 claims description 8
- 210000003298 dental enamel Anatomy 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920003055 poly(ester-imide) Polymers 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 239000004811 fluoropolymer Substances 0.000 claims description 2
- 229920000620 organic polymer Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 239000002966 varnish Substances 0.000 abstract description 4
- 239000006228 supernatant Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- LTMHDMANZUZIPE-PUGKRICDSA-N digoxin Chemical compound C1[C@H](O)[C@H](O)[C@@H](C)O[C@H]1O[C@@H]1[C@@H](C)O[C@@H](O[C@@H]2[C@H](O[C@@H](O[C@@H]3C[C@@H]4[C@]([C@@H]5[C@H]([C@]6(CC[C@@H]([C@@]6(C)[C@H](O)C5)C=5COC(=O)C=5)O)CC4)(C)CC3)C[C@@H]2O)C)C[C@@H]1O LTMHDMANZUZIPE-PUGKRICDSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
- H01B7/0018—Strip or foil conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
Definitions
- the present invention relates to an electrically insulated electrical conduction band, in particular for electric motors and transformers, with a band-shaped electrical conductor, which has an upper cover surface and a lower cover surface, two side edge surfaces and each end side end edge surface, and with an electrical insulation, on at least one cover surface of the band is arranged.
- Such electrical conduction bands are referred to, for example, as electrical sheet or electrical steel and for the production of magnetic circuits for electrical machines, ie cores for dynamos, electric motors,
- Transformers relays, contactors, reactors, ignition coils, electricity meters and controllable deflection magnets used.
- Cold rolled strips and sheets of iron-silicon alloys are customary in this case. Since under the influence of variable magnetic fields in a spool of solid material
- the cores are designed exclusively as lameliATOR and insulated sheets in packages or as wound cut cores.
- wire enamels are known, which are insulating resin based on synthetic resin, which can be applied as thin as possible, homogeneous, electrically insulating films on copper or aluminum wires.
- wire enamels such as THEIC-modified polyester imides, polyamides and epoxies, solderable wire enamels made of polyurethane and adhesive coatings, such as. B. of PVB (polyvinyl butyral) and polyamide.
- the present invention has for its object to provide an electrically insulated electrical conduction band of the type described above, with reduced effort, in particular using a paint for the insulation, can be produced, but has a high electrical insulation effect.
- the insulation comprises a lacquer layer and a film adhesive tape which is glued to the lower top surface and / or the upper top surface of the band-shaped electrical conductor, at least in each case in an area directly to a
- the strip edge is in particular laminated before (or alternatively after) the coating with a temperature-stable adhesive tape (for example made of polyimide).
- a temperature-stable adhesive tape for example made of polyimide.
- FIG. 1 shows a diagrammatic representation of a conduction band according to the invention.
- FIGS. 2 to 7 show variants of the conduction band according to the invention.
- the conduction band 1 according to the invention shown in FIG. 1 comprises a band-shaped electrical conductor 2, which has an upper cover surface 2a and a lower cover surface 2b, two side edge surfaces 2c and at each end an end edge surface (not shown). Furthermore, this includes
- inventive conduction band 1 an electrical insulation 3, the on
- At least one side of the tape 1 - in the illustrated embodiment on both the lower deck surface 2b and on the upper deck surface 2a - is applied.
- the insulation comprises a lacquer layer 3a and an adhesive tape 3b, in particular a film adhesive tape, which consists of plastic and that on the lower
- Cover surface 2b and / or the upper cover surface 2a of the band-shaped electrical conductor 2 is glued, at least in each case in an area 4, which is immediately adjacent to a side edge surface 2c.
- the adhesive tape 3b has a projection 5 with respect to the side edge surface 2c of the band-shaped electrical conductor 1, whereby leakage currents can be prevented.
- the supernatant 5 may preferably have a length L in the range 0 cm ⁇ L ⁇ 5 cm.
- the band-shaped electrical conductor 2 may in particular consist of aluminum or of an aluminum alloy and preferably have a thickness D in the range of 0.1 mm to 1, 5 mm.
- the lacquer of the lacquer layer 3a which by immersion, as by a
- the lacquer layer 3a can be formed from a lacquer based on organic polymers, such as an acrylic, epoxy, polyester, polyamide or fluoropolymer lacquer, or on the basis of sol-gel compositions, in particular a wire enamel, such as a TH E IC mod ifimited polyester imide. It may preferably have a thickness DL in the range from 5 ⁇ m to 50 ⁇ m. As shown, in the
- this thickness DL also be smaller, in particular, so that a flat surface 0 of the insulation 3 is formed.
- the adhesive tape 3b may preferably have a thickness DK in the range from 3 ⁇ m to 20 ⁇ m, wherein this thickness DK may preferably be at least half the thickness DL of the paint layer 3a in the region where no adhesive tape 3b is located.
- the region 4 immediately adjacent to the side edge surface 2c of the tape-shaped electrical conductor 2 may have a width B in the range of 0.2 cm to 4.5 cm, preferably in the range of 0.5 to 1.5 cm.
- FIGS. 2 to 7 show further embodiments.
- FIG. 3 shows an alternative to FIG. 3, in which the top surface 2b and the side edge surface 2c each have no electrical insulation and in particular no lacquer layer 3a.
- the adhesive tape 3b is glued C-shaped starting from the two cover surfaces 2a, 2b around the side edge surface 2c with a cover portion 3c.
- the lacquer layer 3a ends meniscus-like on the adhesive tape 3a before the start of the cover section 3c.
- FIG. 6 shows an alternative to FIG. 3.
- the lacquer layer 3a is applied only on one side on the upper cover surface 2a and on the adhesive tape 3b up to the beginning of the cover section 3c.
- FIG. 7 shows a variant of FIG. 5.
- the electrical conductor 2 has a reduced strip thickness Di in the region in front of its side edge surface 2 c in comparison to FIG.
- the lacquer layer 3a extends continuously up to the cover section 3c.
- the embodiment shows only one way of lamination with the tape 3b.
- Adhesive strips 3b are placed around the edge surface 2c, or the varnish layer 3a could be under the adhesive tape 3b.
- the invention is not limited to the combination of features defined in claim 1, but may also be defined by any other combination of particular features of all individually disclosed features. This means that in principle virtually every single feature of claim 1 omitted or by at least one elsewhere in the application revealed unique feature! can be replaced. In this respect, the claims are to be understood merely as a first formulation attempt for an invention.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017107328.0A DE102017107328A1 (en) | 2017-04-05 | 2017-04-05 | Electro-insulated electrical conductor strip, in particular for electric motors and transformers |
PCT/EP2018/056831 WO2018184823A1 (en) | 2017-04-05 | 2018-03-19 | Electrically insulated electric conductor strip, in particular for electric motors and transformers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3607569A1 true EP3607569A1 (en) | 2020-02-12 |
EP3607569B1 EP3607569B1 (en) | 2022-09-07 |
Family
ID=61899173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18715509.8A Active EP3607569B1 (en) | 2017-04-05 | 2018-03-19 | Electrically insulated electrical conducting ribbon, in particular for electrical motors and transformators |
Country Status (6)
Country | Link |
---|---|
US (1) | US10957464B2 (en) |
EP (1) | EP3607569B1 (en) |
DE (1) | DE102017107328A1 (en) |
ES (1) | ES2931531T3 (en) |
PL (1) | PL3607569T3 (en) |
WO (1) | WO2018184823A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202018105660U1 (en) * | 2018-10-02 | 2020-01-07 | Alanod Gmbh & Co. Kg | Electro-insulated electrical conduction tape, especially for electric motors and transformers |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB900519A (en) * | 1957-07-08 | 1962-07-04 | Eisler Paul | Electric conductor strips |
DE1765866A1 (en) | 1968-07-30 | 1971-10-28 | Felten & Guilleaume Carlswerk | Insulated electrical strip conductor, in particular enamel-insulated strip conductor |
FR2474397A1 (en) * | 1979-12-13 | 1981-07-31 | Magna Ply Cy | Insulative spiral wrapping for elongate conductor - has length of adhesive tape wrapped round core with sticky side out and length of non-sticky tape wound over it |
US5281488A (en) * | 1992-09-15 | 1994-01-25 | Poulsen Peder Ulrik | Foil strip conductor |
EP1461559B1 (en) * | 2001-12-29 | 2008-02-13 | Technip France | Heated windable rigid duct for transporting fluids, particularly hydrocarbons |
JP4475470B2 (en) * | 2007-04-05 | 2010-06-09 | 三菱電機株式会社 | Insulation structure of coil part of rotating electrical machine |
CN101894620A (en) * | 2010-07-28 | 2010-11-24 | 江苏豪威富电气股份有限公司 | Self-adhesive mica tape lapped wire with structure improvement |
JP5892337B2 (en) * | 2012-11-01 | 2016-03-23 | 株式会社オートネットワーク技術研究所 | Reactor, converter, and power converter |
CN111312500A (en) | 2014-02-17 | 2020-06-19 | 伊顿智能动力有限公司 | Inductance coil and electromagnetic device |
WO2015130692A2 (en) * | 2014-02-25 | 2015-09-03 | Essex Group, Inc. | Insulated winding wire containing semi-conductive layers |
JP2016103398A (en) * | 2014-11-28 | 2016-06-02 | 住友電気工業株式会社 | Shield cable |
DE102014119720A1 (en) * | 2014-12-30 | 2016-06-30 | Lisa Dräxlmaier GmbH | Insulated flat conductor and flat conductor composite |
-
2017
- 2017-04-05 DE DE102017107328.0A patent/DE102017107328A1/en not_active Withdrawn
-
2018
- 2018-03-19 WO PCT/EP2018/056831 patent/WO2018184823A1/en active Search and Examination
- 2018-03-19 US US16/500,917 patent/US10957464B2/en active Active
- 2018-03-19 EP EP18715509.8A patent/EP3607569B1/en active Active
- 2018-03-19 PL PL18715509.8T patent/PL3607569T3/en unknown
- 2018-03-19 ES ES18715509T patent/ES2931531T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3607569B1 (en) | 2022-09-07 |
DE102017107328A1 (en) | 2018-10-11 |
US20200118707A1 (en) | 2020-04-16 |
US10957464B2 (en) | 2021-03-23 |
PL3607569T3 (en) | 2023-02-20 |
ES2931531T3 (en) | 2022-12-30 |
WO2018184823A1 (en) | 2018-10-11 |
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